"Dr. Mart\u00EDn Corchado"@en . "Mart\u00EDn Corchado (25 April 1839 \u2013 2 April 1898) was a nineteenth-century Puerto Rican physician who excelled in charitable medical services as well as in the field of medical research."@en . "1839-04-25Z"^^ . . . "1839Z"^^ . . . . "American physician" . "1898Z"^^ . "1898Z"^^ . "1898-04-02Z"^^ . . . "Corchado, Martin"@en . . "1874Z"^^ . .